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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Kinematic viscosity is dependent upon

Distance
Density
Pressure
Flow

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Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for 0 to 25 m head of water?

None of these
Pelton wheel
Kaplan turbine
Francis turbine

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Hydraulics and Fluid Mechanics in ME
For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called

Pascal’s law
Bernoulli’s equation
Continuity equation
Archimedes’s principle

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Hydraulics and Fluid Mechanics in ME
The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is (Assume that boundary layer is entirely laminar)

0.05 cm
0.10 cm
0.40 cm
0.20 cm

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Hydraulics and Fluid Mechanics in ME
The hydraulic grade line is

never above the energy grade line
always above the centre line of pipe
All of these
always sloping downward in the direction of flow

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Hydraulics and Fluid Mechanics in ME
Which of the following meters is not associated with viscosity

Red wood
Orsat
Say bolt
Engler

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